The role of family and school-level variables on relational aggression and relational victimization was investigated among 158 fourth- and fifth-grade children. Family cohesion, maternal and paternal responsiveness, and school climate were hypothesized to be significant predictors of relational aggression and relational victimization. The results indicated that both characteristics of the family and school were related to experiences of relational aggression. However, specific characteristics of the family environment were more important to the prediction of relational aggression and relational victimization. Level of paternal responsiveness emerged as an important variable with regard to relational aggression, particularly for among females and for relational victimization among males. (Contains 3 tables.)